Derk Company asked us for a review of the hydrogeological Conceptual and Numerical models from Cerro Colorado, Spence and Escondida mines, located in Antofagasta and Tarapacá Regions.

A critical analysis was performed on each component of the hydrogeological models created, such as hydrology, geology, hydrochemistry, isotopic print, hydrogeology and the conceptual and numerical construction basis.

A complete report and a summary table with observations and suggestions was handed for each one of these models, showing the satisfying quality and quantity of information per component, disclosing its relevance and improvement opportunities.